JPH0436650Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a buckle for a band for clothing.

Various types of buckles for bands are known, but in recent years, a type in which a locking protrusion protruding from the back side of the tip of the buckle is locked into a locking hole drilled in the band has been developed. are widely used.

Furthermore, in order to allow the band to expand and contract slightly when worn, the attachment portion of the band in the buckle is made to be able to expand and contract in the length direction.

The present invention relates to a buckle structure that allows the band to be expanded and contracted in the aforementioned buckle in which the locking protrusion of the buckle is locked into the locking hole of the band.

BACKGROUND ART Conventionally, there is a telescopic mechanism for a buckle of the type in which a locking protrusion is locked in a locking hole as described above, as described in Japanese Utility Model Application No. 61-52910.
This has a locking protrusion slidably attached to the buckle body, and the overall length of the band changes as the locking protrusion slides relative to the buckle body.

The same publication also describes a conventional example in which a sliding member is slidably provided on the buckle body, and the end of the band is fixed to the sliding member.

Problems to be Solved by the Invention However, all of the buckles described in the above-mentioned publications are limited to buckles in which a band is directly attached to the buckle body.

For the above type of buckle, the end of the band is attached directly to the buckle body, the buckle side band is overlapped on the free end side band, and the locking protrusion of the buckle is locked into the locking hole of the free end side band. A band attachment part is provided at intervals on the back side of the buckle, the end of the band is fixed to the band attachment part, and the free end of the band is passed between the buckle body and the band attachment part. There is known a type in which the locking protrusion is placed above the band on the buckle side and the locking protrusion is locked in the locking hole in this state. Which of these formats to use depends on the personal preference of the user, and both formats are widely used.

However, what is described in the above publication is limited to the former type of buckle and cannot be applied to the latter type of buckle. In the case where the locking protrusion slides against the buckle body, since the locking protrusion is provided on the buckle body, the former type is inevitable, and the mechanism described as a conventional example is required. If it were to be applied to the latter type of buckle, the sliding mechanism would become extremely large and the shape of the band attachment portion would become large, resulting in an unsightly clothing band.

In the case of the former type, by housing the sliding mechanism part within the thickness of the buckle body, the size of the mechanism part is not so restricted and can be designed relatively freely. In the case of the latter type, it is necessary to make the band attachment part as compact as possible, so it is necessary to have a small mechanical part and a sufficient expansion and contraction range, so it is necessary to provide the latter type with an expansion and contraction function. is extremely difficult.

The present invention was devised in view of the above circumstances, and in a buckle of the type in which band attachment parts are formed at intervals on the back side of the buckle, a sliding mechanism is provided in the band attachment part, and the sliding mechanism is installed compactly. It is an object of the present invention to provide a buckle for a band, which can also secure a sufficiently large expansion and contraction range.

Means for Solving the Problems According to the present invention, band fixing parts are provided at intervals on the back side of the buckle body, and one end of the band is fixed to the band fixing part, and the other end of the band is fixed to the buckle body. In the buckle, a locking protrusion protruding from the back side of the tip of the buckle body is locked into a locking hole drilled in the band through a locking protrusion extending between the buckle body and the buckle body. A support member having a substantially U-shaped cross section that opens toward the tip of the buckle is provided, and a notch is formed in the center of the bottom of the support member, and the support member is slidable onto the tip of a band fixing member fixed to one end of the band. A wire spring having a coil portion in the center and two support portions protruding from the coil portion is attached to the support member. is interposed between the bottom of the wire spring and the sliding bar, the elasticity of the wire spring biases the band fixing member toward the tip of the buckle, and the band fixing member is moved toward the rear of the buckle against the elasticity of the wire spring. The present invention is characterized in that the coil portion of the wire spring protrudes from the notch of the support member when biased.

The present invention will be explained below with reference to the drawings. The drawing shows the buckle for a band of the present invention, 1
is a plate-shaped buckle main body, and a locking protrusion 2 is protruded from the back surface of the tip end thereof. Connecting pieces 3 are fixed to both sides of the rear back side of the buckle body 1, and a band fixing part 4 is provided at the tip of the connecting piece 3.

In the band fixing part 4, reference numeral 5 denotes a support member, and the support member 5 is a member having a substantially U-shaped cross section that opens toward the distal end, and is fixed to the buckle main body 1 via the connecting pieces 3 at both side edges thereof. A notch 6 is formed at the bottom of the central portion of the support member 5.

A band fixing member 7 is fixed to the end of the band 8. The band fixing member 7 has side plates 9 on both sides, and has a bridging plate 10 on the rear upper surface, and has a substantially U-shaped cross section. A sliding bar 11 is installed between the tips of the side plates 9, and the sliding bar 11 is slidably fitted into the support member 5, and a locking bar 11 protrudes from the bottom side edge of the support member 5. A stopper piece 12 is slidably fitted into a long hole 13 bored in the side plate 9,
The band fixing member 7 is designed to be able to slide back and forth with respect to the support member 5.

Further, at the rear lower part of the side plate 9 of the band fixing member 7, an operating lever 14 having a substantially L-shaped cross section is rotatably supported.
The end of the band 8 is held between them.

A wire spring 16 is interposed between the bottom of the support member 5 and the sliding bar 11 of the band fixing member 7.
The wire spring 16 has a coil portion 17 at its center, and both ends protrude from the coil portion 17 to form a support portion 18 . Then, as shown in FIG.
8 are supported by the bottoms of both sides of the support member 5, and the coil portion 17 abuts against the center of the sliding bar 11 to bias the band fixing member 7 forward with respect to the support member 5. When the band fixing member 7 is slid backward with respect to the support member 5 against the elasticity of the wire spring 16, the coil portion 17 of the wire spring 16 protrudes from the notch 6 of the support member 5. It's getting old.

Function: According to the present invention, the end of the band 8 is fixed to the rear part of the band fixing member 7 for use. Then, attach the band 8, pass its free end through the back side of the buckle body 1 and between the buckle body 1 and the support member 5, pull it out above the band 8 on the fixed end side, and insert it into the locking hole 19 of the band 8. It is worn by fitting the locking protrusion 2.

When worn normally, the band fixing member 7 is biased forward with respect to the support member 5 by the elasticity of the wire spring 16, as shown in the drawing, and the overall length of the belt is shortened. When the belt 8 is pulled here, the band fixing member 7 is biased rearward with respect to the support member 5 against the elasticity of the wire spring 16, and the entire length of the band 8 is increased by that amount. At this time, wire spring 16
As shown by the chain line in FIG. 4, the coil portion 17 protrudes from the notch 6 of the support member 5. Thereby, the distance between the bottom of the support member 5 and the sliding bar 11 can be made sufficiently small.

Effects of the invention According to the invention, since the band fixing part 4 is provided with a telescoping mechanism, the free end of the band 8 is connected to the buckle body 1.
The buckle can be applied to a type of buckle that is passed between the band fixing part 4 and the band fixing part 4 and pulled out above the band 8 on the fixed end side.

Further, according to the present invention, the support member 5 has a substantially U-shaped cross section, and the notch 6 is formed at the bottom of the support member 5, and the coil portion 1 is disposed between the bottom of the support member 5 and the sliding bar 11.
Since the wire spring 16 consisting of the wire spring 7 and the support portion 18 is interposed, the coil portion 17 of the wire spring 16 is
By protruding from the notch 6, the sliding bar 1
1 and the bottom of the support member 5, the support member 5 can be made small and the sliding range of the band fixing member 7 can be made sufficiently large.

Therefore, the band fixing part 4 is small, and the overall appearance of the buckle body 1 becomes extremely smart. Furthermore, since the buckle body 1 is separated from the band fixing part 4, a desired design can be applied to the entire surface of the buckle body 1, increasing the range of design selection.

[Brief explanation of the drawing]

The drawings show the buckle for a band according to the present invention, in which Fig. 1 is a side view, Fig. 2 is a longitudinal sectional view at the center, Fig. 3 is a bottom view, and Fig. 4 is a cross-sectional view taken from - in Fig. 2. be. 1... Buckle body, 2... Locking protrusion, 4...
Band fixing part, 5 support member, 6...notch, 7...
... band fixing member, 8 ... band, 16 ... wire spring, 17 ... coil section, 18 ... support section.

Claims (1)

[Scope of utility model registration request] Band fixing parts 4 are provided at intervals on the back side of the buckle main body 1, and the other end of the band 8 with one end fixed to the band fixing part 4 is passed between the buckle main body 1 and the band fixing part 4, In a buckle in which a locking protrusion 2 protruding from the back surface of the front end of the buckle body 1 is locked into a locking hole 19 formed in a band 8, the buckle is formed at intervals on the back side of the buckle body 1. A support member 5 having a substantially U-shaped cross section that opens toward the distal end is provided, a notch 6 is formed in the center of the bottom of the support member 5, and the distal end of the band fixing member 7 is fixed to one end of the band 8. A sliding bar 11 is provided on the support member 5, and the sliding bar 11 is slidably fitted to the support member 5, and has a coil portion 17 in the center and two support portions 18 from the coil portion 17. A protruding wire spring 16 is interposed between the bottom of the support member 5 and the sliding bar 11, and the elasticity of the wire spring 16 biases the band fixing member 7 toward the tip of the buckle. The coil portion 17 of the wire spring 16 protrudes from the notch 6 of the support member 5 when the band fixing member 7 is biased to the rear of the buckle against the elastic force of the wire spring 16. Buckles for bands.